jaime: you have to become more concerned about syria at this point. have they crossed the red line and should we respond. >> first of all let's be clear that most initial reports are wrong. it could be what is used is white phosphorus which is not a chemical weapon, when it's dropped from an aircraft and fired from artillery shells it looks a lot like a chemical weapon because it gives off a huge white cloud and oftentimes people mistake that for chemical weapons. in this desperation bashar al-assad authorized the use of sarin, the effects on the pheupl teaon the military is minute but on towns and cities it could be absolutely catastrophic. jaime: how will we know and what will we do? >> there are two indicators. number one is when the syrian army issues gas masks and protective clothing to their soldiers. there is some that suggest that bashar al-assad has ordered that to be done. sadly the next indication is extensive civilian casualties, again particularly in cities and towns. there are reasons why bashar al-assad should not do this. one is the af